CVE-2020-8955 Memory corruption in n/a
Remote attackers can cause a denial of service via buffer overflow in WeeChat by sending a malformed IRC channel mode message.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8955?
CVE-2020-8955 is a critical memory corruption vulnerability in Debian Debian Linux, published on 12 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode).
Weakness: CWE-120
Which versions are affected by CVE-2020-8955?
It affects 5 products.
Linux distribution packages (3)
weechat SUSE:Package Hub 15 | All versions | 2.1-bp151.4.3.1 |
weechat SUSE:Package Hub 15 SP1 | All versions | 2.1-bp151.4.3.1 |
weechat openSUSE:Leap 15.1 | All versions | 2.1-bp151.4.3.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Opensuse Backports Sle, Opensuse Leap, Weechat Weechat.
How do I fix CVE-2020-8955?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-8955 being exploited?
There is no known exploitation of CVE-2020-8955 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-8955, GHSA-j94p-wg5x-c7xg, MGASA-2020-0122, UBUNTU-CVE-2020-8955, openSUSE-SU-2020:0248-1.